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[V3,7/9] ARM: shmobile: genmai reference: Add RSPI nodes

Message ID 1389525222-3482-8-git-send-email-geert@linux-m68k.org (mailing list archive)
State New, archived
Headers show

Commit Message

Geert Uytterhoeven Jan. 12, 2014, 11:13 a.m. UTC 
From: Geert Uytterhoeven <geert+renesas@linux-m68k.org>

Add pinctrl and SPI devices for RSPI on Genmai.

On this board, only rspi4 is in use. Its bus contains a single device
(a wm8978 audio codec), for which no bindings are defined yet.

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
---
V2:
  - Use generic "codec" instead of specific "wm8978" node name.
V3:
  - No changes

 arch/arm/boot/dts/r7s72100-genmai-reference.dts |   18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/arm/boot/dts/r7s72100-genmai-reference.dts b/arch/arm/boot/dts/r7s72100-genmai-reference.dts
index 367af5c133e0..c2cc4bd5a470 100644
--- a/arch/arm/boot/dts/r7s72100-genmai-reference.dts
+++ b/arch/arm/boot/dts/r7s72100-genmai-reference.dts
@@ -43,7 +43,7 @@ 
 };
 
 &pfc {
-	pinctrl-0 = <&scif2_pins &ethernet_pins>;
+	pinctrl-0 = <&scif2_pins &ethernet_pins &rspi4_pins>;
 	pinctrl-names = "default";
 
 	scif2_pins: serial2 {
@@ -73,6 +73,12 @@ 
 				 "ethernet_int_p1_15";
 		renesas,function = "ethernet";
 	};
+
+	rspi4_pins: spi4 {
+		renesas,groups = "rspi4_rspck_p4_0", "rspi4_ssl0_p4_1",
+				 "rspi4_mosi_p4_2", "rspi4_miso_p4_3";
+		renesas,function = "rspi4";
+	};
 };
 
 &i2c2 {
@@ -85,3 +91,13 @@ 
 		pagesize = <64>;
 	};
 };
+
+&spi4 {
+	status = "okay";
+
+	codec: codec@0 {
+		compatible = "wlf,wm8978";
+		reg = <0>;
+		spi-max-frequency = <5000000>;
+	};
+};